Cable-actuated variable area fan nozzle with elastomeric seals
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02K-001/12
F02K-001/11
B25J-005/00
B62D-057/024
G05D-001/00
B64F-005/00
출원번호
US-0225803
(2011-09-06)
등록번호
US-9021813
(2015-05-05)
발명자
/ 주소
Jasklowski, Christopher
Sangwin, Michael L.
Foutch, David William
Alkislar, Mehmet Bahadir
Dilligan, Matthew Anthony
출원인 / 주소
The Boeing Company
대리인 / 주소
Ostrager Chong Flaherty & Broitman P.C.
인용정보
피인용 횟수 :
2인용 특허 :
10
초록▼
An apparatus installed on an aircraft, comprising: a sleeve or duct having a trailing lip area; a plurality of petals arranged side by side with gaps therebetween, one end of each petal being attached or pivotably coupled to the lip area; and a plurality of elastomeric seals configured and disposed
An apparatus installed on an aircraft, comprising: a sleeve or duct having a trailing lip area; a plurality of petals arranged side by side with gaps therebetween, one end of each petal being attached or pivotably coupled to the lip area; and a plurality of elastomeric seals configured and disposed to close the gaps between adjacent petals. Each elastomeric seal comprises a first portion that moves with a portion of a first petal that is in contact therewith, a second portion that moves with a portion of a second petal that is in contact there, and a third portion which is stretched as the first and second petals move further apart from each other. Petal deflection is actuated by a system comprising a flexible member, a motor, a shaft driven by the motor, and an arm projecting from the shaft. One end of the flexible member is attached to the arm, the flexible member being movable to deflect the petals inward in response to a shaft rotation.
대표청구항▼
1. An apparatus installed on an aircraft, comprising: a sleeve or duct having a trailing lip area;a plurality of petals arranged side by side with gaps between adjacent petals, one end of each petal being attached or pivotably coupled to said lip area;a plurality of elastomeric seals configured and
1. An apparatus installed on an aircraft, comprising: a sleeve or duct having a trailing lip area;a plurality of petals arranged side by side with gaps between adjacent petals, one end of each petal being attached or pivotably coupled to said lip area;a plurality of elastomeric seals configured and disposed to close said gaps between adjacent petals; andan actuation system comprising a first flexible member, first and second motors, a first shaft driven by said first motor, a second shaft driven by said second motor, a first arm projecting transversely from said first shaft and comprising a distal end, and a second arm projecting transversely from said second shaft and comprising a distal end, wherein one end of said first flexible member is attached to said distal end of said first arm and another end of said first flexible member is attached to said distal end of said second arm, said first flexible member being movable to deflect said petals inward as said distal ends of said first and second arms move apart in response to rotation of said first and second shafts in opposite directions. 2. An apparatus installed on an aircraft, comprising: a sleeve or duct having a trailing lip area;a plurality of petals arranged side by side with gaps between adjacent petals, one end of each petal being attached or pivotably coupled to said lip area;a plurality of elastomeric seals configured and disposed to close said gaps between adjacent petals, wherein at least one of said elastomeric seals comprises a first portion that moves with a portion of a first petal that is in contact with said first portion, a second portion that moves with a portion of a second petal that is in contact with said second portion, and a third portion which is stretched as said first and second petals move further apart from each other; andan actuation system comprising a flexible member, a motor, a shaft driven by said motor, and an arm projecting from said shaft, wherein one end of said flexible member is attached to said arm, said flexible member being movable to deflect said petals inward in response to a rotation of said shaft,wherein each of said first and second petals comprises respective inner and outer face sheets that confront each other with space therebetween, said flexible member passes through said spaces between confronting inner and outer face sheets, and said third portion of said one elastomeric seal projects into a space between and contacting opposing edges of the inner face sheets of said first and second petals. 3. An apparatus installed on an aircraft, comprising: a sleeve or duct having a trailing lip area;a plurality of petals arranged side by side with gaps between adjacent petals, one end of each petal being attached or pivotably coupled to said lip area, wherein each petal comprises respective inner and outer face sheets that confront each other with space therebetween; anda plurality of elastomeric seals configured and disposed to close said gaps between adjacent petals,wherein at least one of said plurality of elastomeric seals comprises a first portion that projects into a first space between opposing edges of the outer face sheets of adjacent first and second petals, a second portion that projects into a second space between opposing edges of the inner face sheets of said first and second petals, a third portion that projects into a third space between confronting portions of the inner and outer face sheets of said first petal, and a fourth portion that projects into a fourth space between confronting portions of the inner and outer face sheets of said second petal. 4. The apparatus as recited in claim 3, wherein said at least one elastomeric seal is hollow along a major portion of its length. 5. The apparatus as recited in claim 3, wherein said third portion of said at least one elastomeric seal is clamped by said confronting portions of the inner and outer face sheets of said first petal, and said fourth portion of said at least one elastomeric seal is clamped by said confronting portions of the inner and outer face sheets of said second petal. 6. The apparatus as recited in claim 5, wherein said at least one elastomeric seal is in a stretched state when said first and second petals are in respective first positions and is in a substantially unstretched state when said first and second petals are in respective second positions radially inward of said first positions. 7. The apparatus as recited in claim 3, further comprising a core nacelle having a core nozzle at one end, wherein said sleeve is a thrust reverser sleeve that surrounds at least a portion of said core nacelle. 8. An apparatus installed on an aircraft, comprising: a sleeve or duct having a trailing lip area;a plurality of petals arranged side by side with gaps between adjacent petals, one end of each petal being attached or pivotably coupled to said lip area, wherein each petal comprises respective inner and outer face sheets that confront each other with space therebetween;a plurality of elastomeric seals configured and disposed to close said gaps between adjacent petals; andan actuation system comprising a first flexible member that passes through said spaces between said inner and outer face sheets and is movable to deflect said petals inward,wherein said first flexible member comprises a cable, rod, tube or band that passes through openings formed in said elastomeric seals. 9. The apparatus as recited in claim 8, wherein said actuation system further comprises a motor, a shaft driven by said motor, and an arm projecting from said shaft, wherein one end of said first flexible member is attached to said arm. 10. The apparatus as recited in claim 9, wherein said actuation system further comprises a fiber optic sensing system arranged to detect petal positions and a controller connected to receive petal position data acquired by said fiber optic sensing system, said controller being programmed to control said motor as a function of said received petal position data. 11. An apparatus installed on an aircraft, comprising: a sleeve or duct having a trailing lip area;a plurality of petals arranged side by side with gaps between adjacent petals, one end of each petal being attached or pivotably coupled to said lip area, wherein each petal comprises respective inner and outer face sheets that confront each other with space therebetween;a plurality of elastomeric seals configured and disposed to close said gaps between adjacent petals; andan actuation system comprising a first flexible member that passes through said spaces between said inner and outer face sheets and is movable to deflect said petals inward,wherein each petal further comprises a first sliding bracket attached to said outer face sheet and a second sliding bracket attached to said inner face sheet, said first and second sliding brackets being slidably interengaged with each other. 12. The apparatus as recited in claim 8, wherein each petal further comprises a respective guide attached to said respective inner face sheet in an area not occupied by the elastomeric seals disposed in the gaps on respective sides of said petal. 13. The apparatus as recited in claim 8, wherein said actuation system further comprises a second flexible member that passes through spaces disposed between said confronting inner and outer face sheets, said first and second flexible member being axially spaced from each other. 14. The apparatus as recited in claim 13, wherein said actuation system further comprises first and second motors, first and second shafts driven by said first and second motors respectively, and first and second arms projecting from said first and second shafts respectively, wherein one end of said first flexible member is attached to said first arm and one end of said second flexible member is attached to said second arm, and said second shaft is hollow and a portion of said first shaft is disposed inside said hollow second shaft. 15. The apparatus as recited in claim 8, further comprising a core nacelle having a core nozzle at one end, wherein said sleeve is a thrust reverser sleeve that surrounds at least a portion of said core nacelle. 16. The apparatus as recited in claim 3, wherein said sleeve or duct comprises a pair of half-cowls. 17. The apparatus as recited in claim 8, wherein said sleeve or duct comprises a pair of half-cowls. 18. The apparatus as recited in claim 1, wherein first and second petals of said plurality of petals comprise respective inner and outer face sheets that confront each other with space therebetween, and said first flexible member passes through said spaces between confronting inner and outer face sheets. 19. The apparatus as recited in claim 1, wherein said actuation system further comprises a second flexible member, third and fourth motors' a third shaft driven by said third motor, a fourth shaft driven by said fourth motor, a third arm projecting transversely from said third shaft and comprising a distal end, and a fourth arm projecting transversely from said fourth shaft, wherein one end of said second flexible member is attached to said distal end of said third arm and another end of said second flexible member is attached to said distal end of said fourth arm, said second flexible member being movable to deflect said petals inward as said distal ends of said third and fourth arms move apart in response to rotation of said third and fourth shafts in opposite directions. 20. The apparatus as recited in claim 19, said second and fourth shafts are hollow and respective portions of said first and third shafts are disposed inside said hollow second and fourth shafts respectively.
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이 특허에 인용된 특허 (10)
Hauer Thomas A. (Westchester OH), Axisymmetric vectoring exhaust nozzle.
Vives Michel (Eysines FRX) Pestourie Eric (Merignac FRX), Process for the manufacture of composite components comprising a web and a reinforcement structure.
Arnold,Steven M.; Penney,Nicholas, Variable area nozzle including a plurality of convexly vanes with a crowned contour, in a vane to vane sealing arrangement and with nonuniform lengths.
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